

Physiological Principles 



for Determining the 

 Value of the various 



RUBBER TAPPING 

 METHODS. 



^*r 



SI 



BY 



PROFESSOR DR. HANS FITTING, 



STRASSBURG i. E. 



$ 



<> 



SI 



WITH FOUR DIAGRAMS. 



[Translated by J. H. BENTON.] 



CAPPER & SONS: 



"Times of Ceylon " Office, 27, Mincing Lane, 

 LONDON, E.C., 



and " Times " Buddings, Colombo, CEYLON. 



SI 



& 



SI 



:'Y OF 1 



Price I/- & R1. 



